Lcd Tv Universal board

TSUMV59X / E / U, TSUMV29X / E / U

• Supply voltage, VCORE = 1V26, DVDD = 3V3, 3V3 = Standby DVDD, AVDD = 1V8.Voltage measurement preferably with removable flash ic conditions (without software).
• Can not boot, standby only, no response diremot or button panel, chipset warm only. Do not direct in-flash, check first AVDD voltage (1V8) and DVDD (3V3), when rocking (10%), changing its regulator LDO (Low Drop Output).
• Voltage all normal / natural, without rocking, after booting flashed still can not do re-solder, if does not work, replace its TSUM.
• Image defect, check the voltage in all pin-out LVDS, when some measurable 0V or 3V3 (AVDD), replace TSUMnya. (Easier checking with scope for automatic reading signal form).
• If it does not find ic 1117-ADJ, replace it with the kind of disposable ic SMD code EH11A (ADJ)
• VCORE 1V26 1V3 ride so no matter the origin of the stability awake (max. 5%).VCORE regulator usually consists of a DC-DC converter.
• No RF signal, channel search process becomes slow check tuner and sda / scl to tuner. If while searching the channel fast as normal and there raster, TSUMnya often a problem.
• Quietly, trying to flash back first.
• USB error / not detect, test first pin DP and DM, a short-circuit to gnd or to DVDD.
• The rest are still in the search or when it encounters cases involving TSUMV59 chipset.

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